Clinicopathological features of patients with middle third gastric carcinoma

Table 2 Univariate analysis of prognostic factors in middle third gastric carcinoma patients

Variables	No. of patients	5-yr survival rate	P value
Age			0.0057
< 65	688	56.0
≥ 65	231	40.0
Gender			0.0161
Male	602	48.9
Female	317	59.9
Tumor size (cm)			< 0.001
< 5	616	68.5
≥ 5	303	28.0
Depth of invasion			< 0.001
T1	296	88.3
T2	112	75.9
T3	410	37.8
T4	101	15.4
Histologic type			0.0294
Differentiated	324	62.8
Undifferentiated	595	48.2
Hepatic metastasis			< 0.001
(-)	899	53.7
(+)	20	10.8
Operative type			0.4327
Total	297	52.4
Others	622	63.6
Lymph node invasion			< 0.001
N (-)	561	77.5
N (+)	358	32.7
Lymph node dissection			< 0.001
< D2	215	18.3
≥ D2	704	60.0
Stage			< 0.001
I	356	87.5
II	167	62.5
III	223	35.2
IV	173	14.7